.treegrid-indent {width:16px; height: 16px; display: inline-block; position: relative;}

.treegrid-expander {width:16px; height: 16px; display: inline-block; position: relative; cursor: pointer;}

.treegrid-expander-expanded{background-image: url(../images/classesContrast/icon_arrowright.svg); }
.treegrid-expander-collapsed{background-image: url(../images/classesContrast/icon_arrowdown.svg);}